<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */

/**
 * Rule for HTML_QuickForm to display a CAPTCHA image
 *
 * This package requires the use of a PHP session.
 *
 * PHP versions 4 and 5
 *
 * @category   HTML
 * @package    HTML_QuickForm_CAPTCHA
 * @author     Philippe Jausions <Philippe.Jausions@11abacus.com>
 * @copyright  2006 by 11abacus
 * @license    LGPL
 * @version    CVS: $Id$
 * @link       http://pear.php.net/package/HTML_QuickForm_CAPTCHA
 */

require_once 'HTML/QuickForm/Rule.php';

/**
 * Rule to compare a field with a CAPTCHA image
 *
 * @access public
 * @package HTML_QuickForm_CAPTCHA
 * @version $Revision:$
 */
class HTML_QuickForm_Rule_CAPTCHA extends HTML_QuickForm_Rule
{
    /**
     * Validates the data enter matches the CAPTCHA image that was
     * displayed
     *
     * @param string $value data to validate
     * @param HTML_QuickForm_CAPTCHA_Common $captcha_element to check against
     */
    function validate($value, $captcha)
    {
		if (strcasecmp($value,$captcha->getValue()) == 0) {
			return true;
		} else {
			return false;
		}
        
    }

}

HTML_QuickForm::registerRule('CAPTCHA', 'rule', 'HTML_QuickForm_Rule_CAPTCHA', 'HTML/QuickForm/Rule/CAPTCHA.php');

?>